CN100363126C - Hydraulic or pneumatic shaping method and device of plate material - Google Patents

Hydraulic or pneumatic shaping method and device of plate material Download PDF

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Publication number
CN100363126C
CN100363126C CNB2005100470296A CN200510047029A CN100363126C CN 100363126 C CN100363126 C CN 100363126C CN B2005100470296 A CNB2005100470296 A CN B2005100470296A CN 200510047029 A CN200510047029 A CN 200510047029A CN 100363126 C CN100363126 C CN 100363126C
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CN
China
Prior art keywords
mobile unit
hydraulic pressure
stage
plate
shaping
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Expired - Fee Related
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CNB2005100470296A
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Chinese (zh)
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CN1911552A (en
Inventor
郑文涛
张士宏
徐永超
王中堂
周丽新
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Institute of Metal Research of CAS
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Institute of Metal Research of CAS
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Priority to CNB2005100470296A priority Critical patent/CN100363126C/en
Publication of CN1911552A publication Critical patent/CN1911552A/en
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Publication of CN100363126C publication Critical patent/CN100363126C/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to hydraulic or pneumatic plate forming process and apparatus. The forming process includes machining backing plate based on the bottom size of the part to be formed, regulating the movable units inside the mold cavity to form the contour of part bottom, setting the backing plate on the movable units, setting the blank on the mold cavity seat to constitute the mold cavity in the same cross section sizes as the part, pressing the edges of the blank with clamping plate, and introducing liquid pressure or air pressure inside the clamping plate to drive the blank to deform into required part. The forming apparatus has movable units distributed inside the mold cavity, motor for axial driving of the movable units and conventional sealing system. The present invention makes it possible to form different plate parts of different shapes in the same forming apparatus without machining corresponding molds.

Description

A kind of sheet material hydraulic pressure or pneumatic shaping method and device
Technical field
The invention belongs to mechanical engineering field, be specially a kind of sheet material hydraulic pressure or pneumatic shaping method and device, be mainly used in the hydraulic pressure or the gas pressure compacting of plate accessory, material can comprise non-ferrous metal and other ferrous metal such as magnesium alloy, aluminium alloy, titanium alloy.
Background technology
The hydraulic pressure of plate accessory or gas pressure compacting are to adopt liquid or gas as power transmission medium effect panel surface, make its distortion paste mould and form required form.Hydraulic pressure or gas pressure compacting characteristics are that (1) lacks a die or punch than conventional sheet stamping forming device, thereby have reduced die cost and early-stage preparations time; Therefore (2) plate is out of shape more evenly under liquid or gas-powered, can obtain bigger deflection, has improved the rigidity of drip molding, the part quality that acquisition is got well; (3) complex parts that conventional plate stamping technology is difficult to be shaped that can be shaped, this forming technology is mainly used in aerospace at present.Can only be shaped a kind of part of shape of existing sheet material hydraulic pressure or gas pressure compacting device, a common mold.The sheet material sheet metal hydroforming in pairs that western scholar proposes, once can be shaped two can difform part, this forming technology comes down to two shared hydraulic systems of die.Promptly existing with liquid or the gas sheet material forming device as soft punch, the difformity that be shaped part certainly will be processed corresponding with it difform die.In actual production, be generally and adapt to product diversity needs in the market, shaping plate shape can change to some extent, conventional hydraulic pressure or gas pressure compacting matching requirements are the new mould of change design of shape of product each time, design and make new die each time, usually require enterprise to drop into a large amount of time and funds, this controls for enterprise product cost, and the quick renewal of product is very disadvantageous.Therefore be necessary to develop a kind of new device, can conveniently realize the hydraulic pressure or the gas pressure compacting of difformity plate accessory, reduce production costs, improve the market competitiveness of enterprise at this situation.
Summary of the invention
The object of the present invention is to provide a kind of sheet material hydraulic pressure or pneumatic shaping method and device, having solved same set of hydraulic pressure or gas pressure compacting device shaping difformity plate accessory needs the problem of processing mold (die) again, adapts to product diversity needs in the market.
Technical scheme of the present invention is:
A kind of sheet material hydraulic pressure or pneumatic shaping method, according to the part bed-plate dimension processing backing plate that will be shaped, adjusting is placed on the mobile unit group's constituent part bottom profile in the matrix cavity, backing plate is placed on the mobile unit group, blank is placed on the die socket that constitutes matrix cavity, the matrix cavity sectional dimension is identical with part section, adopt the pressing plate flanging above the blank, hydraulic pressure or air pressure import in pressing plate, drive the backing plate applying that blank deformation and matrix cavity sidewall and mobile unit group support, the part of shaping required form.
Adopt the plate accessory of hydraulic pressure stage by stage or gas pressure compacting required form, when being shaped stage by stage, the starting stage, mobile unit group is supporting backing plate and is being in a certain position, after applying hydraulic pressure or gas pressure compacting, discharge hydraulic pressure or air pressure, promptly finished the shaping of starting stage; Then, downward integrally-regulated mobile unit group applies hydraulic pressure or air pressure and carries out the second stage shaping to the another location, and the back that is shaped discharges hydraulic pressure or air pressure, has promptly finished the shaping of second stage; And then whole downwards adjustment mobile unit group, carry out the next stage shaping, to the last be shaped as required part.
Described mobile unit group's mobile unit is done stepless moving along its axis separately, adopts motor-driven, is maintained fixed at an arbitrary position according to the screw thread self-lock mechanism.
Described sheet material hydraulic pressure or the used device of gas pressure compacting, have fixed-use bolt, pedestal, die socket, pressing plate, sealing ring, also comprise backing plate, mobile unit group, motor, the die socket center drilling forms matrix cavity, the mobile unit group that is made of a plurality of mobile unit is arranged in the matrix cavity and place the mobile unit group go up, with the corresponding backing plate of formation of parts bed-plate dimension of wanting, mobile unit group evenly distributes in matrix cavity side by side, and its bottom is connected with and is used for the motor that mobile unit axially drives.
Described mobile unit adopts cylindric drift, and drift and backing plate contact site are square or circular.
Described die socket bottom is provided with pedestal, the employing bolt connects, evenly distributing on the pedestal is used for the screwed hole that the mobile unit group fixes and leads, and the mobile unit top is passed screwed hole and placed in the matrix cavity, and the mobile unit mid portion has the screw thread that cooperates with the pedestal upper screwed hole.
Advantage of the present invention is as follows:
1, the present invention compares with existing plate accessory hydraulic pressure or gas pressure compacting device, mobile unit group and backing plate have been introduced, matrix cavity be built-in with the mobile unit group that forms by several little drifts (mobile unit) and with the corresponding backing plate of want formation of parts bed-plate dimension, the backing plate that matrix cavity and mobile unit group support has constituted the required profile of formation of parts, separate between the mobile unit, can do stepless moving along its axis, and can be fixed on the optional position, when adjusting the position, adopting axis direction motor-driven, be maintained fixed according to the screw thread self-lock mechanism, the device and the principle that drive and control are all fairly simple.When backing plate is mainly used to avoid hydraulic pressure or gas pressure compacting thin plate, in part bottom because the gap between the multiple spot mobile unit forms pit, backing plate can adopt plate to carry out conventional bending forming, and line cuts into the shape of cross section of matrix cavity afterwards, and manufacturing process is simple.
2, the present invention adopts same set of device, carry out the hydraulic pressure or the gas pressure compacting of difformity plate by shape that changes backing plate and the position of adjusting the mobile unit group, saved required funds and the time of die that design and processing are used for new product, can accelerate the renewal speed of product in the enterprise, reduce the production cost of new product, improve the adaptive capacity of enterprise the product diversity demand that exists in the market.
3, adopt the present invention can also realize the shaping stage by stage of sheet material, improve the thickness distribution uniformity of drip molding, improve the quality of products on the one hand, the plate accessory of the more complicated difficult shaping that can be shaped has on the other hand been expanded the range of application of hydraulic pressure or gas pressure compacting technology.
4, hydraulic pressure among the present invention or gas pressure compacting device can be installed on single action or the double action press, can realize hydraulic pressure stage by stage or the gas pressure compacting or the direct forming difformity plate accessory of identical cross-section stairstepping part on same device.
Description of drawings
Fig. 1 (a)-(c) is stairstepping plate accessory hydraulic pressure or gas pressure compacting apparatus structure schematic diagram.Wherein, Fig. 1 (a) is two box-like stairstepping parts that are shaped; Fig. 1 (b) is the stairstepping part on plane for the bottom that is shaped; Fig. 1 (c) is the stairstepping part on inclined-plane for the bottom that is shaped.
Fig. 2 (a)-(c) is stairstepping plate accessory hydraulic pressure or a gas pressure compacting apparatus structure schematic diagram stage by stage.Shaping is divided into three phases, and wherein, Fig. 2 (a) is the starting stage; Fig. 2 (b) is a second stage; Fig. 2 (c) phase III is whole shaping stage.
Among the figure, 1-bolt, 2-pedestal, 3-die socket, 4-blank, 5-pressing plate, 6-sealing ring, 7-matrix cavity, 8-backing plate, 9-mobile unit group, 10-motor.
The specific embodiment
The hydraulic pressure or the gas pressure compacting device schematic diagram of a kind of pair of box-like plate accessory of shaping shown in Fig. 1 (a), hydraulic pressure of the present invention or gas pressure compacting apparatus structure comprise bolt 1, pedestal 2, die socket 3, pressing plate 5, sealing ring 6, matrix cavity 7, backing plate 8, mobile unit group 9, motor 10.Die socket 3 center drillings form matrix cavity 7, the cross section of matrix cavity is except being common circle, rectangle or square, it also can be other shape, have in the matrix cavity 7 mobile unit group 9 that several little drifts (mobile unit) constitute and with the corresponding backing plate 8 of want formation of parts size, drift is cylindrical, and the top that drift contacts with backing plate also can be other cross sectional shape.The loading of the flanging of blank, hydraulic pressure or air pressure is all identical with conventional plate accessory hydraulic pressure or gas pressure compacting device with sealing etc.Bolt 1 is used for being connected and fixed of pedestal 2 and die socket 3, pressing plate 5 is used for the flanging of blank 4 and the introducing of hydraulic pressure or air pressure, P is to being hydraulic pressure or air pressure incoming direction among the figure, sealing ring 6 is used for the sealing of hydraulic pressure or air pressure, many screwed holes evenly distribute on the pedestal 2, be used for fixing and guiding of the mobile unit group 9, micro-machine 10 is used for the axial driving of mobile unit.This kind forming mode, only need according to the part processing backing plate that will be shaped, regulate mobile unit constituent part bottom profile, backing plate 8 is placed on the mobile unit group 9, hydraulic pressure or air pressure drive the backing plate 8 of sheet metal deformation and mobile unit group 9 supports and the inwall of matrix cavity 7 is fitted the plate accessory of the required form that promptly is shaped.Being shaped, other has identical cross-section, and the plate accessory of different bottom shapes only needs backing plate corresponding with the part bottom profile of processing, regulates mobile unit group's position then, can be shaped.Therefore, device of the present invention adopts control system control motor to regulate mobile unit, mates the shaping that different backing plates can be realized difform plate accessory; Adopt identical backing plate, only regulate mobile unit, can also realize the shaping stage by stage of part.
Shown in Fig. 1 (b)-(c), apparatus of the present invention can be regulated mobile unit to diverse location by control system, and are equipped with the different plate accessory of corresponding backing plate shaping, and Fig. 1 (b) is the stairstepping part on plane for the bottom that is shaped; Fig. 1 (c) is the stairstepping part on inclined-plane for the bottom that is shaped.
Shown in Fig. 2 (a)-(c), apparatus of the present invention can also not change hydraulic pressure stage by stage (air pressure) shaping that the backing plate shape realizes plate accessory.When being shaped stage by stage, the starting stage, mobile unit group is supporting backing plate and is being in a certain position, apply hydraulic pressure or gas pressure compacting after, discharge hydraulic pressure or air pressure, promptly finished the shaping of starting stage; Downward then integrally-regulated mobile unit group applies hydraulic pressure or air pressure and carries out the second stage shaping to the another location, and the back that is shaped discharges hydraulic pressure or air pressure, has promptly finished the shaping of second stage; And then whole downwards adjustment mobile unit group, carry out the next stage shaping, to the last be shaped as required part.

Claims (6)

1. sheet material hydraulic pressure or pneumatic shaping method, it is characterized in that: according to the part bed-plate dimension processing backing plate that will be shaped, adjusting is placed on the mobile unit group's constituent part bottom profile in the matrix cavity, backing plate is placed on the mobile unit group, blank is placed on the die socket that constitutes matrix cavity, the matrix cavity sectional dimension is identical with part section, adopt the pressing plate flanging above the blank, hydraulic pressure or air pressure import in pressing plate, drive the backing plate applying that blank deformation and matrix cavity sidewall and mobile unit group support, the part of shaping required form.
2. according to described sheet material hydraulic pressure of claim 1 or pneumatic shaping method, it is characterized in that: the plate accessory that adopts hydraulic pressure stage by stage or gas pressure compacting required form, when being shaped stage by stage, starting stage, mobile unit group is supporting backing plate and is being in a certain position, after applying hydraulic pressure or gas pressure compacting, discharge hydraulic pressure or air pressure, promptly finished the shaping of starting stage; Then, downward integrally-regulated mobile unit group applies hydraulic pressure or air pressure and carries out the second stage shaping to the another location, and the back that is shaped discharges hydraulic pressure or air pressure, has promptly finished the shaping of second stage; And then whole downwards adjustment mobile unit group, carry out the next stage shaping, to the last be shaped as required part.
3. according to described sheet material hydraulic pressure of claim 1 or pneumatic shaping method, it is characterized in that: described mobile unit group's mobile unit is done stepless moving along its axis separately, adopts motor-driven, is maintained fixed at an arbitrary position according to the screw thread self-lock mechanism.
4. sheet material hydraulic pressure or gas pressure compacting device, has fixed-use bolt (1), pedestal (2), die socket (3), pressing plate (5), sealing ring (6), it is characterized in that: also comprise backing plate (8), mobile unit group (9), motor (10), die socket (3) center drilling forms matrix cavity (7), the mobile unit group (9) who is made of a plurality of mobile unit is arranged in the matrix cavity (7) and place on the mobile unit group (9), with the corresponding backing plate of want formation of parts bed-plate dimension (8), mobile unit group (9) evenly distributes in matrix cavity (7) side by side, and its bottom is connected with and is used for the motor that mobile unit axially drives.
5. according to described sheet material hydraulic pressure of claim 4 or gas pressure compacting device, it is characterized in that: described mobile unit adopts cylindric drift, and drift and backing plate contact site are square or circular.
6. according to described sheet material hydraulic pressure of claim 4 or gas pressure compacting device, it is characterized in that: described die socket (3) bottom is provided with pedestal (2), adopt bolt (1) to connect, pedestal (2) is gone up evenly to distribute and is used for the screwed hole that mobile unit group (9) is fixing and lead, the mobile unit top is passed screwed hole and is placed in the matrix cavity (7), and the mobile unit mid portion has the screw thread that cooperates with pedestal (2) upper screwed hole.
CNB2005100470296A 2005-08-10 2005-08-10 Hydraulic or pneumatic shaping method and device of plate material Expired - Fee Related CN100363126C (en)

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CNB2005100470296A CN100363126C (en) 2005-08-10 2005-08-10 Hydraulic or pneumatic shaping method and device of plate material

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CN100363126C true CN100363126C (en) 2008-01-23

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CN102513435A (en) * 2011-12-15 2012-06-27 哈尔滨工业大学 Plate back press forming method utilizing displacement control mode
CN102716965A (en) * 2012-07-15 2012-10-10 哈尔滨工业大学空间钢结构幕墙有限公司 Multi-point die-free rapid shape-regulating hydraulic bulging process and bulging equipment
CN102935453B (en) * 2012-11-12 2016-04-13 山西征宇喷灌有限公司 The method of a kind of air-pressure forming metallic conduit ball-type snap joint
CN103551442B (en) * 2013-10-23 2015-09-16 沈阳黎明航空发动机(集团)有限责任公司 A kind of liquid-filling shaping device of circle of obturaging and preparation method
CN103861927B (en) * 2014-03-18 2016-01-20 哈尔滨工业大学 A kind of sheet material multiple spot punch liquid filling deep-drawing forming device and method
CN104475530B (en) * 2014-11-17 2016-08-10 北京航空航天大学 The sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path
CN106975688A (en) * 2017-02-28 2017-07-25 广西科技大学 Hydroforming equipment with multiple spot cavity plate and the method that plate material parts are manufactured with it
CN109127886B (en) * 2018-11-02 2019-11-15 哈尔滨工业大学 A kind of air pressure-molding combined shaping method of seamed edge fillet R≤2t difficult-to-deformation material rectangular section hollow object

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Publication number Priority date Publication date Assignee Title
US3172453A (en) * 1962-12-31 1965-03-09 Todd Shipyards Corp Position control for multiple tools
JPS5536002A (en) * 1978-09-04 1980-03-13 Toshiba Corp Forming method of bellows
JPS60191621A (en) * 1984-03-12 1985-09-30 Ishikawajima Harima Heavy Ind Co Ltd Method of press forming metallic plate
US5546784A (en) * 1994-12-05 1996-08-20 Grumman Aerospace Corporation Adjustable form die
EP1184102A2 (en) * 2000-09-01 2002-03-06 ESC GmbH & Co.KG Extended Structured Composites Flexible tool for deforming a workpiece
CN2858098Y (en) * 2005-08-10 2007-01-17 中国科学院金属研究所 Board hydraulic pressure or air pressure forming device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172453A (en) * 1962-12-31 1965-03-09 Todd Shipyards Corp Position control for multiple tools
JPS5536002A (en) * 1978-09-04 1980-03-13 Toshiba Corp Forming method of bellows
JPS60191621A (en) * 1984-03-12 1985-09-30 Ishikawajima Harima Heavy Ind Co Ltd Method of press forming metallic plate
US5546784A (en) * 1994-12-05 1996-08-20 Grumman Aerospace Corporation Adjustable form die
EP1184102A2 (en) * 2000-09-01 2002-03-06 ESC GmbH & Co.KG Extended Structured Composites Flexible tool for deforming a workpiece
CN2858098Y (en) * 2005-08-10 2007-01-17 中国科学院金属研究所 Board hydraulic pressure or air pressure forming device

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